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Tiwari OS, Rawat V, Zhang H, Chibh S, Rencus-Lazar S, Diesendruck CE, Gazit E. Ring-opening polymerization of lactide catalyzed using metal-coordinated enzyme-like amino acid assemblies. J Pept Sci 2024:e3626. [PMID: 38810988 DOI: 10.1002/psc.3626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/12/2024] [Accepted: 05/13/2024] [Indexed: 05/31/2024]
Abstract
Polylactide (PLA), a biocompatible and biodegradable polymer, is widely used in diverse biomedical applications. However, the industry standard for converting lactide into PLA involves toxic tin (Sn)-based catalysts. To mitigate the use of these harmful catalysts, other environmentally benign metal-containing agents for efficient lactide polymerization have been studied, but these alternatives are hindered by complex synthesis processes, reactivity issues, and selectivity limitations. To overcome these shortcomings, we explored the catalytic activity of Cu-(Phe)2 and Zn-(Phe)2 metal-amino acid co-assemblies as potential catalysts of the ring-opening polymerization (ROP) of lactide into PLA. Catalytic activity of the assemblies was monitored at different temperatures and solvents using 1H-NMR spectroscopy to determine the catalytic parameters. Notably, Zn-(Phe)2 achieved >99% conversion of lactide to PLA within 12 h in toluene under reflux conditions and was found to have first-order kinetics, whereas Cu-(Phe)2 exhibited significantly lower catalytic activity. Following Zn-(Phe)2-mediated catalysis, the resulting PLA had an average molecular weight of 128 kDa and a dispersity index of 1.25 as determined by gel permeation chromatography. Taken together, our minimalistic approach expands the realm of metal-amino acid-based supramolecular catalytic nanomaterials useful in the ROP of lactide. This advancement shows promise for the future design of simplified biocatalysts in both industrial and biomedical applications.
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Affiliation(s)
- Om Shanker Tiwari
- The Shmunis School of Biomedicine and Cancer Research, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Varun Rawat
- School of Chemistry, The Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Hang Zhang
- Schulich Faculty of Chemistry and the Resnick Sustainability Center for Catalysis, Technion, Israel Institute of Technology, Haifa, Israel
| | - Sonika Chibh
- The Shmunis School of Biomedicine and Cancer Research, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Sigal Rencus-Lazar
- The Shmunis School of Biomedicine and Cancer Research, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Charles E Diesendruck
- Schulich Faculty of Chemistry and the Resnick Sustainability Center for Catalysis, Technion, Israel Institute of Technology, Haifa, Israel
| | - Ehud Gazit
- The Shmunis School of Biomedicine and Cancer Research, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
- Department of Materials Science and Engineering, The Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv, Israel
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
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He T, Peng Y, Li Q, Lu JE, Liu Q, Mercado R, Chen Y, Nichols F, Zhang Y, Chen S. Nanocomposites Based on Ruthenium Nanoparticles Supported on Cobalt and Nitrogen-Codoped Graphene Nanosheets as Bifunctional Catalysts for Electrochemical Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2019; 11:46912-46919. [PMID: 31755691 DOI: 10.1021/acsami.9b17056] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Rational design and engineering of high-efficiency electrocatalysts toward overall water splitting is crucial for the development of hydrogen energy technology. Herein, a facile procedure is described for the preparation of effective bifunctional electrocatalysts for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), where ruthenium nanoparticles are supported on graphene nanosheets that are codoped with atomic cobalt and nitrogen by controlled pyrolysis of melamine-functionalized graphene oxide and metal ion precursors. The obtained nanocomposites (CoNG/Ru) exhibit a remarkable electrocatalytic activity toward both HER and OER in alkaline media, with a respective overpotential of only -15 and +350 mV to reach the current density of 10 mA cm-2, which is much better than the monometallic counterparts and relevant catalysts in the literature. With CoNG/Ru as bifunctional catalysts for overall water splitting in a two-electrode system, a low potential of 1.58 V is needed to reach the current density of 10 mA cm-2, which is even better than that with commercial Pt/C and RuO2 catalysts. This is ascribed to the synergistic interactions between the metal species by metal-metal charge transfer. These results highlight the significance of exploiting the electronic interactions between metal species in carbon-based nanocomposites to develop bifunctional catalysts for electrochemical energy technologies.
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Affiliation(s)
- Ting He
- Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , China
- Department of Chemistry and Biochemistry , University of California , 1156 High Street , Santa Cruz , California 95064 , United States
| | - Yi Peng
- Department of Chemistry and Biochemistry , University of California , 1156 High Street , Santa Cruz , California 95064 , United States
| | - Qiaoxia Li
- Department of Chemistry and Biochemistry , University of California , 1156 High Street , Santa Cruz , California 95064 , United States
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering , Shanghai University of Electric Power , 2588 Changyang Road , Yangpu District, Shanghai 200090 , China
| | - Jia En Lu
- Department of Chemistry and Biochemistry , University of California , 1156 High Street , Santa Cruz , California 95064 , United States
| | - Qiming Liu
- Department of Chemistry and Biochemistry , University of California , 1156 High Street , Santa Cruz , California 95064 , United States
| | - Rene Mercado
- Department of Chemistry and Biochemistry , University of California , 1156 High Street , Santa Cruz , California 95064 , United States
| | - Yang Chen
- Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , China
| | - Forrest Nichols
- Department of Chemistry and Biochemistry , University of California , 1156 High Street , Santa Cruz , California 95064 , United States
| | - Yi Zhang
- Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , China
| | - Shaowei Chen
- Department of Chemistry and Biochemistry , University of California , 1156 High Street , Santa Cruz , California 95064 , United States
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Wang X, Liu C, Wang T, Jiang J. Air–water interfacial assembly of all-aromatic-substituted double-decker phthalocyanine forms aligned nanoparticles. J PORPHYR PHTHALOCYA 2018. [DOI: 10.1142/s1088424618500712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In this manuscript, unexpected supramolecular assembly of [Formula: see text]-conjugated molecules containing complex aromatic substituents was investigated. The air–water interfacial assembly of double-decker phthalocyanines containing sixteen phenol substituents (Ce(Pc2)[Formula: see text] and Y(Pc2)[Formula: see text] form aligned nanoparticles. Depending on the different surface pressure, the Ce(Pc2)[Formula: see text] self-assembled nanostructures can be regulated thoroughly. Although Ce(Pc2)[Formula: see text] and Y(Pc2)[Formula: see text] have only aromatic substituent groups, no H- or J-aggregation of [Formula: see text]-conjugated systems can be detected from the UV-vis spectra of the assemblies of these double-decker phthalocyanines. When the nanostructures of these assemblies were changed greatly, no corresponding changes of UV-vis spectra and FT-IR spectra could be detected. These unusual results can be understood from the balance between the hydrophilicity of aromatic substituents and the ether linkages of double-decker phthalocyanines and the surface pressure, and open new. approaches for supramolecular assembly of complex [Formula: see text]-conjugated systems.
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Affiliation(s)
- Xiqian Wang
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing 100083, China
| | - Chenxi Liu
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing 100083, China
| | - Tianyu Wang
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing 100083, China
| | - Jianzhuang Jiang
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing 100083, China
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Das T, Häring M, Haldar D, Díaz Díaz D. Phenylalanine and derivatives as versatile low-molecular-weight gelators: design, structure and tailored function. Biomater Sci 2018; 6:38-59. [DOI: 10.1039/c7bm00882a] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Phenylalanine (Phe) is an essential amino acid classified as neutral and nonpolar due to the hydrophobic nature of the benzyl side chain.
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Affiliation(s)
- Tanmay Das
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur 741246
- India
| | - Marleen Häring
- Institute of Organic Chemistry
- University of Regensburg
- Regensburg 93053
- Germany
| | - Debasish Haldar
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur 741246
- India
| | - David Díaz Díaz
- Institute of Organic Chemistry
- University of Regensburg
- Regensburg 93053
- Germany
- IQAC-CSIC
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Zhao Q, Yan Z, Chen C, Chen J. Spinels: Controlled Preparation, Oxygen Reduction/Evolution Reaction Application, and Beyond. Chem Rev 2017; 117:10121-10211. [DOI: 10.1021/acs.chemrev.7b00051] [Citation(s) in RCA: 854] [Impact Index Per Article: 122.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Qing Zhao
- Key Laboratory of Advanced
Energy Materials Chemistry (Ministry of Education), Collaborative
Innovation Center of Chemical Science and Engineering, College of
Chemistry, Nankai University, Tianjin 300071, China
| | - Zhenhua Yan
- Key Laboratory of Advanced
Energy Materials Chemistry (Ministry of Education), Collaborative
Innovation Center of Chemical Science and Engineering, College of
Chemistry, Nankai University, Tianjin 300071, China
| | - Chengcheng Chen
- Key Laboratory of Advanced
Energy Materials Chemistry (Ministry of Education), Collaborative
Innovation Center of Chemical Science and Engineering, College of
Chemistry, Nankai University, Tianjin 300071, China
| | - Jun Chen
- Key Laboratory of Advanced
Energy Materials Chemistry (Ministry of Education), Collaborative
Innovation Center of Chemical Science and Engineering, College of
Chemistry, Nankai University, Tianjin 300071, China
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He T, Xue H, Wang X, He S, Lei Y, Zhang Y, Shen R, Zhang Y, Xiang J. Architecture of CoN x single clusters on nanocarbon as excellent oxygen reduction catalysts with high-efficient atomic utilization. NANOSCALE 2017; 9:8341-8348. [PMID: 28593211 DOI: 10.1039/c7nr02165h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A new strategy to fabricate CoNx single cluster supported nanocarbon catalysts (C/P/2Co600) with enhanced atomic utilization towards the oxygen reduction reaction (ORR) is reported. N-Coordination protection and low-temperature pyrolysis are the two key factors for the formation of CoNx single clusters on nanocarbon supports. Morphological and structural identification confirmed the simultaneous anchoring of homo-dispersed CoNx single clusters and N-doping on the nanocarbon under relatively mild thermal treatment conditions. Expectedly, the obtained single cluster catalyst with a trace amount of metal atoms exhibited excellent ORR performance including a positive half-wave potential (0.846 V), a high mass activity (0.98 A mgCo-1, ampere per milligram of cobalt) and outstanding chemical durability after 8000 potential cycles. We believe that our findings provide a new route for the rational design of low-cost and highly active ORR catalytic materials.
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Affiliation(s)
- Ting He
- Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, College of Chemistry and Chemical Engineering, Central South University, 932 Lushan South Road, Yuelu District, Changsha, Hunan, China.
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Wang S, Yu D, He X. Retracted Article: A facile strategy to fabricate nitrogen-doped graphene aerogel supported Fe 3N nanoparticles as efficient electrocatalysts for the oxygen reduction reaction. NEW J CHEM 2017. [DOI: 10.1039/c6nj04114k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Wang S, Yu D, He X. A facile strategy to fabricate nitrogen-doped graphene aerogel-supported Fe3N nanoparticles as efficient electrocatalysts for the oxygen reduction reaction. NEW J CHEM 2017. [DOI: 10.1039/c6nj02679f] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, a novel hybrid composed of iron nitride and nitrogen-functionalized graphene aerogel (Fe3N/N-GA) was fabricated and used as an electrode material for the oxygen reduction reaction (ORR).
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Affiliation(s)
- Shufeng Wang
- Department of Chemistry and Chemical Engineering
- Changchun University of Science and Technology
- Changchun 130022
- P. R. China
| | - Dingling Yu
- Department of Chemistry and Chemical Engineering
- Changchun University of Science and Technology
- Changchun 130022
- P. R. China
| | - Xingquan He
- Department of Chemistry and Chemical Engineering
- Changchun University of Science and Technology
- Changchun 130022
- P. R. China
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Iron and nitrogen co-doped carbon derived from soybeans as efficient electro-catalysts for the oxygen reduction reaction. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.08.090] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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